We report on an experimental study of the statistical effects of optical parametric noise on the signal pulses in a synchronously pumped optical parametric oscillator. We measured a signal pulse that grew from the optical parametric noise using a temporal gating system and found that the time required for the signal growth was remarkably scattered, even if the pump pulses were maintained to be constant. The statistical properties of the signal pulses were not affected by the changes in the pump power but were characterized by the optical parametric noise. We examined these statistical properties numerically using nonlinear coupling equations and found that the measured properties could be reproduced using a simple model in which the optical parametric noise had random phase in the frequency domain.

中文翻译：

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同步泵浦光参量振荡器中光参量噪声对信号脉冲的统计影响

我们报告了在同步泵浦光参量振荡器中光参量噪声对信号脉冲的统计影响的实验研究。我们使用时间选通系统测量了从光学参量噪声中增长的信号脉冲，发现即使泵浦脉冲保持恒定，信号增长所需的时间也显着分散。信号脉冲的统计特性不受泵浦功率变化的影响，但具有光学参量噪声的特征。我们使用非线性耦合方程对这些统计特性进行了数值检查，发现可以使用简单模型（其中光学参量噪声在频域中具有随机相位）来再现所测量的特性。